//

the symbol “//” is used mostly in roleplaying forums to denote “slash,” or roleplays containing male/male or female/female romantic pairings. in contrast, “straight” romantic roleplays are often denoted with two upright lines (||). the use of “//” was popularized on the neopets roleplaying board, where the use of the word “slash” and other synonyms (shounen-ai, yaoi, etc.) have been banned. however, as neopets staff members have apparently begun to catch on to the meaning of “//,” shutting down boards that advertise it, it is likely that this term, too, will soon be replaced by something more obscure.
common roleplaying board t-tles, particularly on neopets:

{onexone}{//}
// highschool
{modern fantasy}{//}{||}
the two slash marks // when used in texting,short communications like twitter, facebook updates, and pictures represents love or the love of someone or something. using the two slash marks // is the same as saying, i love you. the two slash marks can be used in conjuction with modifiers to create short sentences and greater explanations of the love felt.
goodnight jj. //
// you babe.
//
// so much.
// quack!

means “boyxboy” or “girlxgirl” in usual rpgs. very cute usually, but they do grow on you.
steven and alden like playing around in steven’s bed after hours. // kind of playing.
emoticon that represents a man’s erection while simultaneously indicating approval or enjoyment of the topic of conversation.
bill: “i found $50 on the ground”
sam: “//”
an emoticon sent in response to an email or sms that indicates to the sender that recipient does understand or is confused by the point / context of the text/email. inspired by dogs tilting their heads to the side when they are confused.
sally: im gonna tonight
harry: /?/
sally: sorry, im gonna leave tonight
//, used in front of a statement containing sarcasm in email/im/message boards, because it’s hard to convey sarcasm without face-to-face contact or smilies.
first coined on newstoday, which incidentally has a high percentage of jaded designer types and no emoticons.
aim kiddie: “dood, i ttly lurve teh hoff!!!111eleventy”
jaded designer type: “//yeah, i can’t get enough of that hackneyed internet obsession either.”
symbol standing for parallel.
the roads are // to each other.